compare_thresholds: Compare changes in t_var based on different threshold levels.
In INDperform: Evaluation of Indicator Performances for Assessing Ecosystem States

Description Usage Arguments Value See Also Examples

compare_thresholds is a helper function for thresh_gam. It test whether a specific threshold value leads to a new splitting of trainings observations in the threshold variable in comparison to the previous threshold value. Returns FALSE if the change in the t-t_val does not result in a new grouping of threshold values (above and below the t_val).

1	compare_thresholds(t_val, t_var)

`t_val`	A vector with threshold values.
`t_var`	A vector with pressure values of the threshold variable.

The function returns a tibble with one row for each t-val and two columns:

t_val: The input vector of threshold values.
change: logical; if TRUE, the respective threshold value lead to a new splitting of trainings observations in the threshold variable.

thresh_gam

t_var <- rnorm(20)
lower <- stats::quantile(t_var, prob = .2, na.rm = TRUE)
upper <- stats::quantile(t_var, prob = .8, na.rm = TRUE)
t_val <- seq(from = lower, to = upper, by = (upper - lower) / 20)
compare_thresholds(t_val, t_var)